Hi we have recently bought our first caravan privately. We thought we had been thorough and took our own damp metre and checked it. We have since had the caravan serviced and the readings are very high in areas - 30 and 60 around the top where it appears we have had a a problem with the awning rails. The engineer had suggested re-sealing but will this cure the problem. Please help very concerned as we are very new to it all. Thank you